#A63B43#A63B43

#A63B43 is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.6% C 0.141 H 19.4°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#A63B43
RGB	rgb(166, 59, 67)
HSL	hsl(356, 48%, 44%)
HSV	hsv(356, 64%, 65%)
CMYK	cmyk(0%, 64.5%, 59.6%, 34.9%)
CIE-LAB	lab(40.64, 44.59, 19.12)
CIE-LCH	lch(40.64, 48.52, 23.21°)
OKLab	oklab(50.56% 0.1329 0.0467)
OKLCH	oklch(50.56% 0.141 19.4)
XYZ	xyz(18.3047, 11.6426, 6.5925)
Luminance	0.1164 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A63B43 #3BA69E

analogous

#A63B79 #A63B43 #A6693B

triadic

#A63B43 #43A63B #3B43A6

tetradic

#A63B43 #79A63B #3BA69E #693BA6

square

#A63B43 #79A63B #3BA69E #693BA6

split-complementary

#A63B43 #3BA669 #3B79A6

monochromatic

#4C1B1F #792B31 #A63B43 #C45A62 #D4878D

Accessibility & contrast

On white

6.31

#A63B43 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#A63B43 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A63B43

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A63B43	#FFFFFF	#000000	##FFFFFF
##A63B43	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565243

Deuteranopia (green-blind)

#716840

Tritanopia (blue-blind)

#B6263F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #a63b43;
/* rgb */ color: rgb(166, 59, 67);
/* oklch */ color: oklch(50.6% 0.141 19.4);

Tailwind

colors: {
  custom: {
    50: '#c67677',
    500: '#a63b43',
    950: '#000000',
  },
}

SCSS

$custom: #a63b43;
$custom-light: #c67677;
$custom-dark: #000000;

JSON

{
  "hex": "#a63b43",
  "rgb": {
    "r": 166,
    "g": 59,
    "b": 67
  },
  "hsl": {
    "h": 355.514,
    "s": 47.556,
    "l": 44.118
  },
  "oklch": {
    "l": 0.50555,
    "c": 0.14084,
    "h": 19.4
  },
  "luminance": 0.1164
}

Semantic roles & 50–950 ramp

primary

#A63B43

secondary

#7EBFBA

accent

#D7CD51

background

#FCF7F7

surface

#F9EDED

border

#D2C8C8

text

#140908

muted

#827B7B

Preview Lab

Preview with #A63B43

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →